耳植入的幼儿的语音处理网络形成与早期的听力经验
Meiyun Wu1, Haotian Liu2,3, Xue Zhao1
1State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China.
Developmental science
|October 16, 2024
概括
早期的听力体验迅速塑造了带有耳植入器 (CI) 的儿童的语音处理网络. 网络发展预测了未来的沟通技巧,强调了及时听觉输入对于语音获取的重要性.
科学领域:
- 神经科学是一个神经科学.
- 发育神经科学的发展神经科学.
- 听觉神经科学 听觉神经科学
背景情况:
- 先天性聋影响语音处理网络的发展.
- 耳植入器 (CI) 提供听觉恢复,但网络形成需要研究.
- 了解早期的听觉体验对于语音学习至关重要.
研究的目的:
- 为了研究带有耳植入器的儿童的语音处理网络的形成.
- 追踪功能连接在听觉和语言领域的发展后CI.
- 将网络发展与未来的听觉和口头沟通技巧联系起来.
主要方法:
- 功能近红外光谱学 (fNIRS) 用于84名先天性耳聋的幼儿.
- 在CI后的36个月内重复测量.
- 分析听觉和语言相关皮质区域的功能连接.
主要成果:
- CI儿童最初缺乏成熟的网络模块化,表现出不成熟的temporo-parietal连接.
- 语音处理网络迅速形成,观察到非线性发育轨迹.
- 像左半球优势这样的关键特征在CI使用的第一年就出现了.
- 发育变化预测了未来的沟通能力,其中temporo-parietal连接是显著的.
结论:
- 通过CI的早期听觉体验迅速塑造正在发展的语音处理网络.
- 网络形成,特别是temporo-parietal连接,在语音获取中起着调解作用.
- 这些发现强调了听觉输入在发展语音和语言技能中的关键窗口.
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